Scale current duration when tempo is adjusted

relic-se · relic-se · commit a48333251253 · 2025-08-22T11:34:33.000-05:00
diff --git a/shared-module/synthio/MidiTrack.c b/shared-module/synthio/MidiTrack.c
@@ -122,6 +122,7 @@ mp_int_t common_hal_synthio_miditrack_get_tempo(synthio_miditrack_obj_t *self) {
 
 void common_hal_synthio_miditrack_set_tempo(synthio_miditrack_obj_t *self, mp_int_t value) {
     mp_int_t val = mp_arg_validate_int_min(value, 1, MP_QSTR_tempo);
+    self->synth.span.dur = (uint32_t)self->synth.span.dur * self->tempo / val;
     self->tempo = val;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -122,6 +122,7 @@ mp_int_t common_hal_synthio_miditrack_get_tempo(synthio_miditrack_obj_t *self) {`
`122`	`122`
`123`	`123`	`void common_hal_synthio_miditrack_set_tempo(synthio_miditrack_obj_t *self, mp_int_t value) {`
`124`	`124`	`mp_int_t val = mp_arg_validate_int_min(value, 1, MP_QSTR_tempo);`
	`125`	`+ self->synth.span.dur = (uint32_t)self->synth.span.dur * self->tempo / val;`
`125`	`126`	`self->tempo = val;`
`126`	`127`	`}`
`127`	`128`